import React from 'react'

function Son1({ count }) {
    console.log('Son1 render');
    return (
        <div>
            <h4>Son1</h4>
            <p>Son1 props count: {count}</p>
        </div>
    )
}
// 借助React.memo实现 纯组件的功能
export default React.memo(Son1)
